CODEWITHSUNDEEP
java
Ozgen
Ozgen

Reputation: 1092

Composition Relationship

I have a composition relationship as follows. SubClass uses a method of MainClass. So it needs the reference of MainClass. Doing like that, SubClass is strongly tied to MainClass. Is it advisable to do so? Is there a way/design pattern to break cross dependency?

Public Class MainClass {

   private SubClass subClass;

   public MainClass(){

      subClass=new SubClass(this);

   }

   public doTCPCall(){
       ....
   }


}


Public Class SubClass {

   private MainClass mainClass;

   public SubClass(MainClass mainClass){

      this.mainClass=mainClass;

   }

   public doTCPCall(){
      mainClass.doTCPCall();
   }
}

Upvotes: 0

Views: 58

Answers (1)

Anderson Vieira
Anderson Vieira

Reputation: 9049

If the method MainClass.doTCPcall() does not depend on any specific MainClass instance information to run, it could be made static. This way, SubClass would not need to store an instance of MainClass. It could just call the static method:

public void doTCPCall() {
    // Call the doTCPCall() using the class name instead of an instance
    MainClass.doTCPCall();
}

Upvotes: 1

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